M&S says

Our curtains are expertly crafted featuring exclusive designs & quality fabrics that maintain their colour. They're made using traditional techniques, with exquisite invisible stitching on the hems & corners, & lined to give the perfect drape. Each finished pair has a clean and uniform look that will brighten any room.

FREE returns through a Collect+ location - just use the pre-paid label that came with your order. To find your nearest Collect+ location, visit www.collectplus.co.uk.FREE 24/7 returns through any InPost locker - over 1000 locations across the UK. Click here to get your free InPost returns label and to locate your nearest InPost locker.International returns - full details on how to return.
Returns and refunds exclusions:
Some items like bedding, lingerie and swimwear can't be returned once the original packaging, tags and hygiene seals have been removed. This does not affect your right to return faulty goods.Tell me more about the M&S refunds and returns policy >Contact us for more details >